Added linux install instructions to README. Missing CMAKE install instructions.

README.md

 ## Curiosity task - 3D object viewer
 
-We are not doing Pacman. Instead we are doing a Curiousity Task.
+We are not doing Pacman. Instead we are doing a Curiosity Task.
 We are focusing heavily on Architecture/Framework development for an OpenGL
 graphics engine.
 
@@ -13,10 +13,10 @@ loaded, edited, re-loaded during run-time by the user:
 - Model files     (e.g. cube.yml       - custom format)
 - Scene files     (e.g. playground.yml - custom format)
 
-We are focusing on beiing as generic as possible when supporting these files, 
+We are focusing on being as generic as possible when supporting these files,
 to empower the user. We are trying to make it possible for non-programmers
 to enjoy the 3D-viewer, although the text-only input system might scare some
-people awy.
+people away.
 
 Our target user is an educator or a student who wants to learn about 3D
 graphics datastructures.
@@ -27,6 +27,32 @@ for exporting high-poly models to our custom format.
 We want to model an entire scene graph.
 
 
+## Install Instructions
+
+#### Windows
+
+#### MacOS
+
+#### Linux
+Since we are using c++17 features, a newer compiler is necessary.
+We are also using python3 or above.
+```bash
+    sudo apt-get install clang++-5.0
+    sudo apt-get install python3.5
+    #TODO insert install instructions for cmake 11.
+
+    git clone <REPO LINK>
+    cd imt2531-assignment2
+    mkdir build
+    cd build
+
+    cmake .. -DCMAKE_CXX_COMPILER=clang++-5.0
+    make
+
+    ./cube
+    ./cube assets/scenes/demo1.yml # Load specific scene.
+```
+
 ## Roadmap
 
 ### Minimum Requirements assignment 2
@@ -44,7 +70,7 @@ We want to model an entire scene graph.
 - [x] Use of multiple advanced mesh.
 - [x] Write own object loader
 - [x] Make Camera movable
-- [ ] Multiple scenes
+- [x] Multiple scenes.
 
 
 ### Own requirements Engine
@@ -157,4 +183,3 @@ meshes: 1
     material: glass
 
 ```
-